If you're having trouble getting motivated to get up off the couch, eat right and lose the extra pounds, you might want to consider the effect of those extra pounds on your brain. In fact, those pounds may be part of the reason why you are having a hard time motivating yourself to get off the couch in the first place.

Being overweight is linked to a variety of health issues such as heart disease, diabetes, hypertension and some cancers. But a high body mass index (BMI) can also be harmful to your brain.